How do you follow the novels, the acting, Blackadder, Jeeves and Wooster, Kingdom, QI, Bones, the movie directing, the movie starring, the musical, the double act, the Guardian column, the voiceovers, the tweeting, the documentaries, the confessionals and the tea adverts? Well, next is Stephen Fry, stand-up.

Fry is to appear at the Royal Albert Hall next month for a live one-man show. If it goes well a national tour could follow.

"It is sort of stand-up, yes," Fry said. "I mean it's not a lecture or a revivalist meeting, nor will it be me leaning on a microphone stand going: 'What is it about Belgians?'"

The show is being described as "part confessional, part observational, part inspirational and part anecdotal". It follows shows in Australia, where he had been invited to perform and had no real idea of what he was going to do.

"It's only a slight exaggeration to say that as I was standing in the wings of the Sydney Opera House, I thought: 'I don't actually have a show.'"

So on Fry went, not really knowing what he was going to talk about, although he had used Twitter to get followers to suggest subjects. "It was so exciting," Fry said. "They say that when you're freezing to death you feel warmth before you die, as if your body is rewarding you, and I suppose it's a bit like that."

Fry has had success in almost everything he has done. The one disaster was, ironically, a live performance – in 1995 he abruptly walked out of the west end play Cell Mates, disappearing to Belgium. "But that was play fright, not stage fright, it's a very different thing," he said. It was a feeling that he should not be there and that he was letting himself and others down, he explained.

Fry admitted having the occasional "collywobbles" but said he was looking forward to the show on 20 September. "I just want to make it fun, and one has to assume that people coming to see the show like me. If it goes well then I may well do a tour. People are already tweeting me about the fact it is just London, so it could be whole new chapter in my life."